Enoch b



nitrh faire atrat titre.

Letters Patent No. 75,216, elated diavoli 3, 1868.

IMPROVEMENT IN COMBINATION PADLOCKS.

Gite Stimuli: trattati tu in ilgrse lttttts jlnttnt mit mating ont nt tlgs smut.

TO AIiL WHOM IT MAY CONCER Be it known that I, ENOC'H E. STUBns, of West Elkton, in Preble county, in the State of' Ohio, have invented certain new and useful Improvements in Locks; and I do hereby declare that the following is a'full and exact description thereof, reference being had toA the accompanying drawings, and to the letters of reference marked thereon. i

Figure l represents the internal mechanism-otl my improved lockthe front plate being removed to exhibit the parts. l A

Figure 2 represents the rear plate as removed from the lock, as exhibted in fig. 1.

Figure 3 represents the front of the lock. i

Figure 4 is an edge View with that portion taken away `between the lines .z x of iig. 1. i

Figure 5 represents the key.

My invention relates to certain improvements in comhination-lccks," and consists in the combination of mechanism to prevent the lock from being picked or unlocked-by the use of the'key in the hands of a person who is not informed of the combination by which the locking was last done.

In the accompanying drawings, A and B denote the two opposite sides of a padlock. The front side, A, has a central circular orice, around which is described a circle, with-radiating lines between it and the orifice, and figures are set opposite the outer termination ofeach radiating line, The rear side or plate of the lock, denoted by the letter B, isalso provided with similar lines andiigures around a central hole, as represented in g. 2. In the entre of the lock there are two circular tumblers, a and b. The latter is provided with an arbor, 2, and ajournai, 3.l The arbor 2 passes out through the centre of the tubular arbor or hub 4, which also serves as ajournal in' the orifice of plate A. There are two indentations or holes in each of thejournals 3 and 4, indicated by the large' black dots, intol which the prongs of key C will t. The small dot z', also on the ends of thesejournals, serves as an indicator, the use of which is hereinafter explained. e

The tnmblers a and 6 are provided with radial slots @Land may be also provided with slots e, as eeen in fig. Betweexnthe-disk-tumblers a. Z1, the sliding slotted safety-boltfis placed, with its central slot embracing the arbor 2 of the tumbler b, and a stud,'i`astenecl to the `plate B, projects throughl the diagonal slot 5 of thisA bolt. E is a hook, connected'with' the loose stud 6, which is journalled in both the plates A. B. vThe hook E may be partially rotated, hymeans of its stud, for the purpose of hooking with the safety-boltrwliich has a. slot, g, formed near its end, for the purposel of receiving the curved end ofhook E, to hold the safety-holtf against the pivoted hook F. 'The spring-pawl D `falls into the slots e ofthe tumblers, when the eccentric-stud 7 is adjusted to the position represented inig. 1. l3nt when this stud is partly turned around upon its journals, in the plates A B, the pawliwi-ll he held `out of contact 'with the diskltumblers a I). The hook F is furnished with two spurs, 8 9. The former itsinto the slots of the tumhlersa b, when they are properly adjusted to admit it, and the lattrenters the radial slot of the independent tumbler or stu'd 7i, when the latter is properly adjusted to receive it. The studs t, 6, and 7, are journalleddn the front and rear plates A and B, and on the front plate there are, surrounding each of the grooved ends of those studs, dots arranged irregularly, by ,which the d person using the lock is enabled to properly set them for locking and-unlocking. One end of the key C is maple narrow and Het, to fit the grooves in the front ends ofthe studs/li 6 7. The spring s is connected with the hook F, and rests'with its other ond against the hoop IjI of the lock, and serves to press the concave side of the hook against the periphery of the two tnnihlersLthei-ehy forming a brake to retain the tumblers from being rotated upon their axes, except by the use of the key. There arc two holes, t, in the hoop H, through which the key may he inserted, 'for the purpose of unlockingand for removing the safety-boltj'into position to receive thelhook E. But when the hook E is thrown out of contact with boltf, and the hasp o is to be opened'or unlocked, by moving' the hook F in the direction of the arrow j, the hook F will act upon the boltf and throw it downwards towards the key-holes t, and the diagonal slot 5, working' on its stud, will lcause the holt to move out ofthe way ofthe hook F. Y l y The dotted lines v denote the central slot in the holt, through which the central arbor 2 projects.' Instead ci` using the key O for thrusting the safetyfbolt in behind the hook F, to receive the catch E, or for unlocking,

the two holes in the hoop, at t t, may be closed, and two eccentric-hands or studs, similar to the studG, with its hooked arm E, may be placed at the points and 11, with their journals on the two plates A and B, to be operated by the narrow end of the key, on the outside of thc lock, to actuate the safety-boltj', and to unlock the llook F and hasp o. When my lock is thus constructed, therel will be no openings into which gunpowder could be inserted to destroy the look. v

In fig. 1 the several 'parts are adjusted so that a movement of the key C, in the direction of the arrow j, will unlock and release the hasp 0'; and when the parts are thus adjusted., the dots iz', on the journals 3 and 4, are in apposition, one with the radial line 8, and the other, which is at the front sideot` the lock, with the line 7 9, as may be seen in figs. 2 and 3.

I propose, in constructing my'lock, tov make-the arbor 2 separately from the disk-tumbler b, with the por-` tion of the arbor which will berinserted in tumbler b, of octagonal form, and a correspondingly-formed hole in theceutre of the tumbler, so that the person using the lock can change the relative positionof the indicatingldot z' on the journal 3, in regard yto the several {igures at thc termination of the radial lines ofthe rear plate B.

It will be observed that onevor moie of the devices for securing`thc hook F t'rom being detached from the h'asp may bc used without the others. For instance, the studs G z, vand boltif, may occupy the position as represented in fig. 1, and the' disk a may be turned upon its axis so asto let the ,pawl D fall into one of the slots e, which will take the slot d, of disk-tumbler a, out of range with the spur S, ivhich alone will prevent the lock from being unlocked; or the safety-bolt'f and hook E may be employed without any change in the relations of the other devices with respect to the hook F.` If theslotted stud 7L is so placed that its slot is not in 'apposition,with.,`the spur g, the hook F cannotbe detached from the hasp, although the tumblers a b, pawl D, and holtf, may he so adjusted as to entirely free the hook F from their resistance. Y

The disk-tumblers, provided with radial slots, operating in combination with a bolt, having a spur' to fit into the slots, Aare not new as applied to iocks, and therefore do not claim such devices irrespective of their combination and arrangement with the other features Vwith which I employ them.

Itis proper that I should here state that I propose to place the tigures which surround the circular lines, onboth front and rear plate ofthe lock, on separate movable rings of metal, by which means I can change the 'igures from time to time, which will indicate the positions` to which the dotted journals must be set to unlock the ha'sp. I

Having fully described my invention, what I claim, and desire to secure by Letters Patent, is-` The combination of the safety-boltf with the hook E and hasp-hook F, arranged and operating sub. stantially as described for the purpose specified;

2. The spring-pawl D-'and eccentric-stud 7, in combination with' tumbler a and pivoted hook F, arranged :andoperating conjointly inthe manner and for the purpose described.

Dated this 13th day of January, 1868.

Witnesses:

J. Gr. CLARK, H. l. K. Pncn.

ENOCH E. STUBBS. 

